Identify which law fits each example below. Write 1st, 2nd or 3rd as your answer.

1. When a frog jumps up from its lily pad, gravity pulls it down, causing it to land on another lily pad
instead of moving in a straight line.

2. After you start up with your dirt bike, as you give it more gas, it goes faster.

3. A pitched baseball goes faster than one that is gently thrown.

4. When you paddle a boat, the boat goes forward.

5. A little girl who has been pulling a sled behind her in the snow is crying because when she stopped
to tie on her hat, the sled kept moving and hit her in the back of her legs.

6. When you are standing in a subway train, and the train suddenly stops, your body continues to go
forward.

7. When the rocket fuel ignites, the gas expansion and explosion propel the rocket forward.

8. A swimmer pushes water back with his arms, but his body moves forward.

9. When Ben and his dad are skipping pebbles on the pond, the pebbles that Ben's dad thrown go farther
and faster than his.

10. As an ice skater pushes harder with his leg muscles, he begins to move faster.